ERROR_SHARING_VIOLATION – The requested operation cannot be performed because another process has locked the file with dwShareMode=0 .
Use Sysinternals or Process Explorer :
Microsoft Defender’s "Tamper Protection" feature prevents any external software from modifying core security drivers. When Kaspersky tries to install klim6sysx64 , Defender blocks the write operation, triggering Error 27300. error 27300 error installing driver klim6sysx64 exclusive
Here are the most effective methods, ordered from simplest to most advanced. 1. Run the Kaspersky Removal Tool (Clean Reinstallation)
If the error persists, ensure that you have and that no other third-party firewall or antivirus (like McAfee or Norton) is currently active. These often "lock" the network stack, preventing the klim6 driver from installing exclusively. Here are the most effective methods, ordered from
Select the previously installed product version from the dropdown menu and execute the clean.
Upload the .sys file or the installer to: These often "lock" the network stack, preventing the
If a reboot and Windows update don't solve the problem, follow these solutions in order. They are arranged from least to most invasive.
Open the Start menu, type , right-click "Command Prompt" and select Run as Administrator . Type sfc /scannow and press Enter. Let it complete.
If the digital signature catalog is corrupted, Windows will block the installation. Open .